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About CDC.gov

• Chikungunya virus disease became a nationally notifiable condition in 2015. Cases are reported to CDC by state and local health departments using standard case definitions.

• As of August 9, 2016, a total of 59 chikungunya virus disease cases with illness onset in 2016 have been reported to ArboNET from 24 U.S. states (Table & Map). All reported cases occurred in travelers returning from affected areas. No locally-transmitted cases have been reported from U.S. states.

• A total of 99 chikungunya virus disease cases with illness onset in 2016 have been reported to ArboNET from U.S. territories (Table). To date, 98 locally acquired cases and 1 travel-associated case have been reported from Puerto Rico.

2016 provisional data for the United States : • Chikungunya virus disease became a nationally notifiable condition in 2015. Cases are reported to CDC by state and local health departments using standard case definitions. : • As of August 30, 2016...

2016 provisional data for the United States : • Chikungunya virus disease became a nationally notifiable condition in 2015. Cases are reported to CDC by state and local health departments using standard case definitions. : • As of August 16, 2016...

2015 provisional data for the United States : • In 2015, chikungunya virus disease became a nationally notifiable condition. Cases are reported to CDC by state and local health departments using standard case definitions. : • As of August 25, 201...

2015 provisional data for the United States : • In 2015, chikungunya virus disease became a nationally notifiable condition. Cases are reported to CDC by state and local health departments using standard case definitions. : • As of August 18, 201...

2015 provisional data for the United States : • In 2015, chikungunya virus disease became a nationally notifiable condition. Cases are reported to CDC by state and local health departments using standard case definitions. : • As of August 11, 201...